JPS6233742Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a portable packaging bag made of plastic film that is sealed so that sterilized wet paper, so-called wet tissue paper, can be taken out one by one. By improving the structure of the flap that opens and closes the outlet formed in the opening so that it can be reclosed, we have made it easier to open and close the flap, making it easier to take out the wet tissue paper, and improving the sealing performance. This is what I did.

Conventionally, at the outlet of this type of packaging bag,
A large number of sheets of folded wet tissue paper are sealed and packaged at the same time as heat-sealing with a plastic film such as polypropylene, and one surface of a flat rectangular packaging bag is covered along the longitudinal direction, which is the folding direction of the wet tissue paper. A horizontally elongated opening is formed, and a flap made of a plastic film that is wider than the opening shape and whose one edge is heat-sealed to the outer surface of the packaging bag body is superimposed on the entire circumferential surface of the horizontally elongated opening. Some flaps have an opening/closing structure in which the flap is covered with an adhesive, and an adhesive is applied to the circumferential end surface of the overlapping surface of the flap except for a portion corresponding to the opening, thereby sealing the flap so that it can be peeled off and reclosed.

However, with such a conventional structure, the peeling direction of the flap is along the longitudinal direction of the oblong opening, so the peeling distance is long, and the flap itself is a thin plastic film with weak repetitive force. There are disadvantages in that the flap tends to come loose or wrinkle when re-closing, has poor sealing performance, and is troublesome to re-close.Furthermore, when peeling off, the flap may peel off and come off, and the opening may be damaged along with the flap. There were also some inconveniences such as the packaging bag separating due to the tension.

This invention was aimed at solving the above-mentioned conventional drawbacks, and its gist is that a large number of sheets of folded wet tissue paper are taken out from the outlet formed on the surface, one by one. In a planar rectangular packaging bag made of plastic film that is stored so that it can be pulled out, the take-out port includes an oblong opening formed in the center along the longitudinal direction of the surface of the packaging bag body, and a horizontally long opening formed in the center along the longitudinal direction of the packaging bag body surface, a first flap consisting of a cut-and-raised piece that is integrally formed by cutting the surface of the packaging bag main body in three directions, leaving one long side edge as a bent edge while closing in the direction of the flap; The flap is separately polymerized on the outer surface of the packaging bag body so as to cover the entire circumference of the opening including the flap surface, and an adhesive is applied entirely to the polymerized surface, and the first flap is folded. a second flap that is wider than the shape of the opening and is fixed by heat-sealing the edge corresponding to the curved edge, and the long edge of the second flap on the peeling side is It is characterized in that it is formed in a protruding shape, and the first flap is maintained together with the peeling opening operation by the second flap, so that the opening can be reclosed.

Hereinafter, this invention will be explained based on the illustrated embodiment. As shown in FIGS. 1 to 3, 1
is a planar rectangular packaging bag body made of plastic film such as polypropylene, in which a large number of folded wet tissue papers A are hermetically stored, and on one surface 1a,
A take-out port 2 is formed from which wet tissue paper A can be pulled out one by one.

The outlet portion 2 includes a horizontally long opening 3 having a planar rectangular shape that is opened at the center along the longitudinal direction of the packaging bag main body surface 1a, and one long side of which the opening 3 is formed by making a cut. It includes a first flap 4 made of a cut-and-raised piece that is formed integrally with the packaging bag body by cutting in three directions while leaving the end portion 4a as a bent edge, and the surface of the first flap 4. The entire circumferential surface of the opening 3 is polymerized and bonded with an adhesive 6, and one side is attached to the outer surface of the packaging bag body on the side of the long side edge 4a which becomes the bent edge of the first flap 4. It consists of a second flap 5 which is wider than the planar shape of the opening 3, the long side edge 5a of which is fixed by a heat seal a, and the second flap 5 is rolled up in the direction of the short side. It is capable of being peeled off or re-adhered upward and downward, and the other long side end edge 5b on the peeling side is formed in a chevron shape so that the whole is formed into a planar pentagon, and the tip of the chevron shape. It has a configuration in which a grip portion 7, which is a non-adhesive portion, is provided on 5c.

By the way, in order to manufacture the packaging bag according to the above-mentioned invention, as shown in FIG. Slit 1 that is cut into a horizontally long opening
Another plastic film material 13 that will become a second flap is formed by integrally forming a cut and raised piece 12 that will become a first flap at the same time as 1 is cut, and then an adhesive 14 is applied to the entire overlapped surface except for the tab portion 13a.
is polymerized and bonded so as to cover the portion where the slit 12 is formed, and then heat-sealed (a), and then the wet tissue paper A is hermetically housed using a conventionally well-known packaging means.

In addition, as an alternative method, a second
The flap 5 is polymerized and bonded, and then the slit 11 is cut only on the packaging bag main body surface 1a by pressing with a cutter from below the packaging bag main body surface 1a, and at the same time the cut and raised piece 12 which will become the first flap is cut out. Molded in one piece. Next, after applying the heat seal a, it is also possible to package the wet tissue paper A in a hermetically sealed manner using conventionally known packaging means.

In the above embodiment, the planar shape of the opening 3 closed by the second flap 5 is rectangular, but it may also be formed in a similar shape to the second flap 4, as shown in FIG. By this, the width of the opening 3 can be enlarged, and the wet tissue paper A can be
It becomes easier to take out.

Next, to explain the function of the packaging bag according to this invention, when taking out the wet tissue paper A, pinch the end grip part 7 of the second flap 5 that constitutes the take-out opening part 2 with your fingers, When the flap is peeled off by rolling it up in the direction of the short side (indicated by the solid arrow), the first flap 4 that closes the opening 3 remains polymerized and adhered to the back surface of the second flap 5.
The flap 5 is combined with the flap 5 and rolled up to open the opening 3.
Open. At this time, the second flap 5 is rolled up in the short side direction of the horizontally long opening 3 of the packaging bag main body 1, and since the long side edge 5b on the peeling side is in the shape of a mountain, the second flap 5 is Even when peeling is performed at the opening, the width of peeling at the initial stage of peeling is small, and the initial peeling can be easily performed with a small force. In addition, since the first flap is completely separated from the surface 1a of the packaging bag main body by the slit 11, there is little resistance when pulling it apart, and the edge of the first flap when the lid is opened is sharp and high. It has the effect of increasing quality value. Next, in this state, after taking out the required amount of wet tissue paper A sheet by sheet, when the second flap 5 is released, the first flap 4 is cut and raised integrally with the packaging bag body 1 and in the direction of the short side. Since the opening 3 is formed so that the opening 3 is closed by the first flap 4, the repetitive force is large in combination with the second flap 5, which is heat-sealed. The flap closes with high accuracy, and following the repetitive force of the first flap 4, the second flap 5 also naturally covers the opening without shifting or wrinkling, and is reclosed just by pressing lightly. This makes it possible to reliably seal the opening. Moreover, because the second flap is fixed to the packaging bag at the long side edge 4a of the first flap by heat sealing the long side edge 5a, the second flap cannot be removed. Furthermore, even when the second flap is peeled off, the slit end portion of the opening will not be torn off and will be strengthened. Then, in the manufacturing stage of the packaging bag, a slit 11 serving as an opening is formed in advance at an appropriate location of the plastic film material 10, and the first
Since the cut and raised pieces 12 that form the flaps are not separated and are integrated, the first flap 4 is always accurately placed in the opening 3 to facilitate the superposition of the second flap. Can be done.

As explained above, this invention combines the first flap, which is formed by cutting and raising the outlet part from which the wet tissue paper is pulled out one by one into the packaging bag body, and the first flap. and a second flap that is maintained so that the opening can be freely opened and closed, and the second flap can be opened and closed in the direction of the short side of the horizontally long opening. As a result, the flap can be opened and closed easily, making it easy to take out the wet tissue paper, and by making use of the flap's strong repeating force, it can be reclosed very naturally, which is expected to improve the sealing performance. It has excellent practical effects.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of a packaging bag for wet tissue paper according to this invention, Fig. 2 is a partially enlarged sectional view showing the flap in the open state taken along the line in Fig. 1, and Fig. 3 is a Similarly, FIG. 4 is a sectional view showing the closed state of the flap, FIG. 4 is an explanatory view showing the manufacturing process, and FIG. 5 is a perspective view showing another embodiment of the invention. DESCRIPTION OF SYMBOLS 1...Packaging bag main body, 1a...Surface, 2...Outlet part, 3...Opening part, 4...First flap, 4
a...Bent edge, 5...Second flap, 5a, 5
b...Long side edge, 5c...Tip, 6...Adhesive, 7...Knob part, A...Wet tissue paper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a planar rectangular packaging bag made of plastic film that stores a large number of folded wet tissue papers so that they can be pulled out one by one from an outlet formed on the surface. , the outlet portion includes an oblong opening formed in the center along the longitudinal direction of the surface of the packaging bag main body, and the opening is covered in the direction of the short side, and the edge of one long side is closed. A first flap consisting of a cut-and-raised piece formed on the surface of the packaging bag main body while remaining as a bent edge; The opening shape is formed by separately polymerizing the surface and applying an adhesive over the entire surface of the polymerized surface, and heat-sealing and fixing the edge corresponding to the bent edge side of the first flap. The second flap is also composed of a wide peelable and readhesive second flap.
The long edge of the peeling side of the flap is formed into a protruding shape, and the opening can be freely reclosed by combining the first flap with the peeling opening operation by the second flap. Wet tissue paper packaging bag. (2) The wet towel according to claim 1 of the utility model registration claim, characterized in that the shape of the opening formed by cutting and forming the first flap is similar to the planar shape of the second flap. Tsushiyu paper packaging bag.